1. Assume that a 19 cm length of wire is carrying a current perpendicular to a 4.1 T magnetic field and
experiences a force of 7.6 mN. What is the current in the wire?*
(2 points)
3.4x10^-7 A
9.8x10^-3 A
1.0x10^-2 A
O 9.8 A

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?